Treatment of cork textile rolls



May 17 9 1927.

1,629,145 H. F. BuscH PREATMENT OF coax TEXTILE ROLLS Filed Nov. '5 1925.

Patented May 17, 1927.

UNITED STATES- I 1, 29,145 rarest orrics.

HERMAN F. Boson, or MILLVALEQPENNsYLVANIA, AssIeNOR TOIARMSTRONG'OORK COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF BENN'SYLVANIA.

TREATMENT OF CORK TEXTILE ROLLS.

Application filed November 5, 1925. Serial no. 67,122.

ment of cork textile rolls, and more es-" pecially to the treatmentof such rolls with oil before use in order to give them a slick surface. The invention also relates to the rolls which have been so treated.

Cork rolls of the type disclosed in the Busch Patent No. 1,532.682 of April 7, 1925, are being extensively used in the textile industry, and particularly as drawing rolls on spinning frames; The surface of these rollsis finished by careful grinding so as to give a smooth surface. It is found that even with the most careful grinding. there is a tendency for the rolls, particularly when new. to pick up the fine cotton fibre.

I have discovered that this tendency may be overcome by impregnating the cork with oil before the rolls are put into use. The oil gives to the roll surface an oily smooth ness or slickness which prevents it from picking up the cotton fibre. Tests indicate that cotton yarn spun with my oil-impreg' nated cork drawing rolls is somewhat stronger than that spun with unoiled cork drawing rolls or with the usual leathercovered drawing rolls.

The cork may be impregnated by dipping the roll in a bathof oiland allowing it to remain a sufficient time so that the body of the cork, or at least the surface of the cork, will become impregnated with the Oil. It is preferred, however, to apply the-oil by dipping the rolls in a bath of the oil'dissolved in some volatile solvent, such as benzene, which gives a quicker impregnation, and also when suitably proportioned to the oil, will prevent a too great degree of saturation.

The preferred oil'with which to impregnate the cork is cottonseed oil. This is preferred because it is the natural oil of the cotton. However. other oils may be used, preferably those having the general characteristics of cottonseed oil. However,,still other types of oils may be used. For example, linseed oil has been used and found workable, although, in general, not as good as oils of the cottonseed type. Any oil may be used which will produce the desired slick surface on the roll; preferably. of course. oils which will not adversely affect the bleaching or dying of the textile and which are pre ferably saponifiable so that they may be washed out of the textile.

While oils are peculiarly suitable for procspecially applicable.

the working surface of the roll.

ducing the slick surface desired, other materials which may have tho'desired effectmay be employed, such as unctuous waxes or cerates.

In the drawings: Figure l is an elevation of the usual type roll of the s 'ilnning frame provided with a cork cot;

Figure 2 is a similar view showing the cots in cross section; and I Figure 3 is a perspective view cots.

These illustrations are taken from my Patent No. 1,532,682 for purposes of illustration and to show the general type of texof one of the tile rolls to. which the present invention. is I In the'drawings. referencenumeraI 1-indlcates the metal body or mandrel of the usual type drawing roll of a spinning frame,

cots or sleeves applied thereto. These cots are preferably of the character disclosed in my Patent No. 1,532,682, and consist of compressed artificial cork having the'ccmpressed flattened cork granules disposed edgewise to As disclosed in my prior patent, the artificial cork is made up of granulated cork and an elasticbinder, usually a glycerine-gelatiue binder. This mixture is compressed and the binder set by heat to form a resilient or elastic artificial cork composition, made up of fiattened cork granules held together by the binder. The material is so cut or shapedin making the rolls that the flattened granules of cork are displaced edgewise to the working surface of the rolls, as shown in Figure 3, in which reference numeral 3 indicates some of these flattened cork granules as visible at the end of the cot. The workin surface of the roll therefore consists o transverse sections through the flattened and reference numeral Q'indicates the cork cork granules. This surfacewhen smoothed.

or finished by careful grinding is peculiarly adapted for the drawing operation on the fibrcs of cotton or other textile materials.

The surface thus afforded is still further improved, and particularly for use on finesmoothness not obtained by grinding alone.

This treatment does not destroy the fine mat the proper frictional grip on the textile finish which is'peculiarly adapted to exert o impregnated Witha substance which gives .lt an added sllckness,

fibres, but does give it an added smoothness, which I can best characterize as being slicker than the untreated surface.

The textile-rolls of the, Busch Patent No. 1,532,682 are particularly adapted for the treatment of the present invention since the body of the material used for such rolls is not adversely affected by the slickening oil used, and the surface finish offered by fine grinding and oiling is peculiarly suitable for operating on fine textile fibres.

While the present invention is particu larly applicable to the improvement of the Working surfaces afforded by the textile rolls of my Patent No. 1,532,682, the invention is not limited to the type of roll claimed in that patent, but may be otherwise embodied within the scope of the following claims.

I claim:

,1. As a new article of manufacture, a textile roll having a cork working surface substantially as described.

2. As a new article of manufacture. a textile roll having an'oil-irnpregnated cork surface, substantially as described.

3. As a new article of manufacture, a textile rollhaving a cork working surface impregnated with an oil which does not adversely affect the bleaching or dyeing of the textile, substantially as described.

4. As a new article of manufacture, a textile roll having an artificial cork working surface, wherein the flattened granules are disposed at an angle to the surface, and having said surface impregnated to form a slicker condition than that afforded by grinding alone.

5. Asa new article of manufacture, a'textile roll having an artificial cork working surface, said surface being formed of the edge portions of flattened granules rooted within the body of the roll, the working surface being initially impregnated with an unctuous material which does not adversely affect the bleaching 'or dyeing of the teat: tiles.

In testimony whereof my hand. HERMAN F. BUSCH I have hereunto set 

